<template>
  <form class="form-inline" @submit.prevent="onFormSubmit">
    <div class="input-group mb-2 mr-sm-2">
      <div class="input-group-prepend">
        <div class="input-group-text">任务</div>
      </div>
      <input
        type="text"
        class="form-control"
        placeholder="请输入任务信息"
        style="width: 356px"
        v-model.trim="taskContent"
      />
    </div>

    <button type="submit" class="btn btn-primary mb-2">添加新任务</button>
  </form>
</template>

<script>
export default {
  name: 'TodoList',
  methods: {
    onFormSubmit() {
      if (this.taskContent === '') {
        alert('不可为空')
      } else {
        this.$emit('addtask', this.taskContent)
      }
    },
  },
  data() {
    return {
      taskContent: '',
    }
  },
}
</script>

<style></style>
